{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T04:52:40Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T16:30:00Z", "ingestedAt": "2026-10-05T13:20:48+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-06T19:52:00+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q515", "registryId": "vr.tr.city", "name": "city", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.PLC" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q515/", "model": { "registry_id": "vr.tr.city", "name": "city", "purpose": "Let an agent handle cities by legal status, boundaries, population, governance and services, and resolve the several definitions of a city (administrative, urban area, metropolitan).", "definition": "A large, permanent human settlement with a dense population and urban functions, usually with a legal status as a city or municipality granted under national law.", "what_it_is_for": "Concentrating people, work, services and culture in one place.", "affordances": [ "live, work and visit there", "govern it, through a municipal council and mayor", "measure it, by population and area under a stated definition", "plan and build it, under planning law" ], "distinguishing_features": [ "Legal city status differs by country", "Administrative city, urban area and metropolitan area are different units", "Has a local government", "Capital status is a separate designation" ], "appearance": "Dense buildings, streets, public spaces and infrastructure, often with a historic centre and growing outskirts; historic cities may have walls.", "visual_identification": [ "Dense built-up area and street grid", "City limits signs and municipal boundaries", "Different definitions give different outlines on maps" ], "physical_properties": [ { "quantity": "population", "typical_range": "10000-37000000", "unit": "people", "note": "depends on definition and country" }, { "quantity": "population density", "typical_range": "1000-40000", "unit": "people/km2", "note": "" } ], "families_and_kinds": [ "capital city", "megacity", "historic walled and fortified towns", "planned and ideal cities", "twin cities and conurbations" ], "related_models": [ { "relation": "is a kind of", "target": "human settlement", "why": "alongside towns and villages" }, { "relation": "is governed by", "target": "executive branch and municipal council", "why": "local government" }, { "relation": "contains", "target": "road, building and other infrastructure", "why": "urban fabric" }, { "relation": "is confused with", "target": "metropolitan area", "why": "a larger statistical unit" } ], "identifiers": [ { "scheme": "national municipality code", "value_or_pattern": "country-specific", "note": "for example INSEE codes in France" }, { "scheme": "UN/LOCODE", "value_or_pattern": "five characters", "note": "trade and transport locations" }, { "scheme": "GeoNames id", "value_or_pattern": "numeric", "note": "gazetteer" } ], "standards_and_regulation": [ "National law on municipalities and city status", "EU-OECD Degree of Urbanisation definition", "Planning and building law" ], "failure_modes_and_hazards": [ "Comparing populations under different definitions", "Confusing a city with its metropolitan area", "Out-of-date boundaries after mergers" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Report population, boundaries and status from official statistics, stating the definition and date.", "Distinguish a city proper from its metropolitan area." ], "must_not": [ "Compare city populations measured under different definitions without saying so.", "Present outdated boundaries or status as current.", "Rank or describe neighbourhoods in ways that stigmatise their residents." ], "requires_human": [ "Using city data in decisions on services or funding for residents." ] }, "ethics": { "considerations": [ "City data shapes where public money and services go." ], "affected_parties": [ "Residents", "Visitors", "Local government" ] }, "owners": { "steward": "The municipal government under national law; national statistics offices count it.", "master_systems": [ "National statistics and administrative boundary registers" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q515: city", "url": "https://www.wikidata.org/wiki/Q515", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: City", "url": "https://en.wikipedia.org/wiki/City", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "definition-and-boundaries", "name": "Definition and boundaries", "description": "What counts as the city.", "rationale": "The same city has several outlines.", "layers": [ { "id": "definition", "name": "Definition", "description": "Administrative, urban, metropolitan.", "findings": [ { "id": "definition-finding", "name": "Definition used", "description": "The definition behind a figure.", "questions": [ { "text": "Which definition of the city does this figure use?", "kind": "provenance" }, { "text": "How does it differ from the others?", "kind": "measurement" } ] } ] }, { "id": "status", "name": "Legal status", "description": "City status and capital.", "findings": [ { "id": "status-finding", "name": "Legal status", "description": "Legal status under national law.", "questions": [ { "text": "Does it have legal city status, and since when?", "kind": "provenance" }, { "text": "Is it a capital, and of what?", "kind": "definition" } ] } ] } ] }, { "id": "population-and-economy", "name": "Population and economy", "description": "People and work.", "rationale": "Population figures need a date and definition.", "layers": [ { "id": "population", "name": "Population", "description": "Counts and density.", "findings": [ { "id": "population-finding", "name": "Population", "description": "Population with date and source.", "questions": [ { "text": "What is the population, as of when, from which source?", "kind": "measurement" }, { "text": "How is it changing?", "kind": "measurement" } ] } ] }, { "id": "economy", "name": "Economy", "description": "Main activities.", "findings": [ { "id": "economy-finding", "name": "Economy", "description": "Economic structure.", "questions": [ { "text": "What are its main economic activities?", "kind": "definition" }, { "text": "What is its role in the region?", "kind": "definition" } ] } ] } ] }, { "id": "governance-and-services", "name": "Governance and services", "description": "Who runs it and what it provides.", "rationale": "Residents deal with the city through its services.", "layers": [ { "id": "government", "name": "Local government", "description": "Council and mayor.", "findings": [ { "id": "government-finding", "name": "Government", "description": "Local government structure.", "questions": [ { "text": "How is the city governed, and who is the mayor?", "kind": "provenance" }, { "text": "Which services does it provide directly?", "kind": "definition" } ] } ] }, { "id": "services", "name": "Services", "description": "Transport, utilities, safety.", "findings": [ { "id": "services-finding", "name": "Services", "description": "Key services.", "questions": [ { "text": "How are transport, water and waste handled?", "kind": "definition" }, { "text": "How do residents contact the city?", "kind": "action" } ] } ] } ] }, { "id": "place-and-history", "name": "Place and history", "description": "Where and how it grew.", "rationale": "Location and history explain form and identity.", "layers": [ { "id": "location", "name": "Location", "description": "Coordinates and region.", "findings": [ { "id": "location-finding", "name": "Location", "description": "Location and region.", "questions": [ { "text": "Where is the city, and in which region?", "kind": "definition" }, { "text": "Which identifiers locate it?", "kind": "provenance" } ] } ] }, { "id": "history", "name": "History", "description": "Founding and growth.", "findings": [ { "id": "history-finding", "name": "History", "description": "Key historical facts.", "questions": [ { "text": "When and how was it founded?", "kind": "provenance" }, { "text": "Has it had other names?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Should cities be instances with a stated definition for every figure?", "How should mergers and renamings be tracked?", "Which definition should the registry use by default?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }